Improved car-brake and starter



LW. WILSN.V

Car Starter angd Brake.

Patented 4Feb. l. 1870.Y

am arpa.

J. WALL WILSON, or 'NEW Yoan, N. Y.

Lcttersllatent No. 99,509, elated February 1, 1870.

IMPROVED CAR-BRAKE AND STARTER.

HOM-

The Schedule referred to in these Letters Patent and -makng part of thesame.

To all whom it may concern.-

Beit lmownthat I, J. WALL WILSON, of the city, county, and State of NewYork,.have invented a new and useful Improvement in Car-Brakes andStarters, of which the following isV a t'ull,'clear, and exact -description, reference being had to the accompanying drawing, forming partof this specification, and in which i Y Figure 1 represents a plan ofthe running portion of a horse-railroad car, with my improved brake andstarter applied thereto.

Figure 2, a mainly central longitudinal section of the same.

Figure 3, a side View, from the exterior, of a detached portion, showinga clog or shoe of one of the brakes, with devices for operating thesaine, and

Figure 4, an inside view thereof, on au enlarged scale.

Similar letters of reference indicate corresponding parts.

li/Iyimprovement is applicable to horse-railroad cars, 'and othervehicles; and

The invention consists in a novel and advantageous` combination'ofmechanism, whereby the same motion that is used to put on the brakes,serves to actuate or generate a power for starting the car after thebrakes are released, or the brakes maybe operated at pleasure, withoutactuating the'starting-means, and the invention includes a new anduseful combination ot' devices, including eccentrics to the clogs or.shoes of the brakes, i'or operating the same.

Referring to the accompanying drawing- A represents the frame, whichcarries the running gear of the car, and

B B', its front and rear wheels, to which X X' are These wheels areprovided, on their inner side or face, with supplementary peripheries,0,0', and circular racks or ratchet-wheels, D D', both of lesserdiameter than the wheels B B', so as not to' come in contact with theground.

The brake or 4brakesiare made un, in part, of' clogs or shoes E E', andsuitably-clothed or formed frictionwheels F F', the latter `beingdesigned tobe operated when it is required'to generate a power forstarting the car after the brake-force or pressure has been removed,whilethe clogs or shoes E E' are used altogether, or more exclusively,when, in putting on the brakefforce, as in going down-hill, it is notrequired to accumulate a power for starting the car again. Both of-these brake-means are or may be operated by one and the same primarydevice, at either or opposite ends of the car,rand which may be anordinary brake-shaft or rod,

' G or G', provided with a crank or handle, a or a', and

the arrangement here shown is such, as that ou turning either of saidshafts in the one direction, the friction-wheels F F', and thebrake-shoes E or E', are thrown into ,working-contact with theperipheries C C', of the wheels B B', and on turning such shaft orshafts G or Gr' in the reverse direction, beyond the point or extentnecessary to release the fl'ictionqvhcels F or F' from working-contact,the clogs or shoes vE E are 'alone brought to bear upon the treads ofthe Wheels B B. To accomplish this twofold brake-action, I

adopt the following combina-tion and arrangement of them, and saidfriction-Wheels are provided with pulleys or small barrels, c c', madefast to `them on their inner sides.

The upper' shafts H H also have, loosely arranged upon them, directlyover the barrels c c', small pulleys, ll 'd'.

J J are intermediate cross-shafts, turning, at their ends, in bearingsmade fast to the main frame, and having small barrels e cj,'and c' e f',fast on them.

Chains q lr and g' h' are made fast at their one end,

andwound in reverse directions around barrels M',-

at the lower ends of the operating-shafts Gr G', or it may be a singlechain to each of said shafts, wound in reverse directions around itsbari-elfi or i', so as virtually to form two chains.

The opposite ends of these chains, g hand g h', are made fast, the ones,g g', to the barrels ff, and the others, la. h', to (either directly, orthrough rods k k') opposite arms or' a lever or beam, K, pivoted, as at7,7 to abrace extending across the main frame, which l beam isconnected,by rod-s l l', to the radial pins or projections on 'm' on the shafts 1l. The barrels e e and cv c' have secured to them, chains u u', whichchains are extended and lapped around the barrrels c lc' of the loosefriction-Wheels, and from thence passed up 'overtheloose pulleys cl fl',and made fast, respectively, to sliding bars L L', carrying, at theirone end, pawls o o', which gear, when drawn up over them, with theratchetavheels I) D..

These sliding bars L L' are made fast, at their otherends', to springs MM.

N N' are springs, which serve to draw back'the brakes when released,said springs being arranged to 'pull on the brakes through their lowerconnecting-shafts I I'. Then applying the clogs or shoes EE' to thewheels,

they are not onlydrawn against the wheels B B' by the pull of eitherchain h It', (according to the end ot' the car from which the brakes arebeing worked,) and rods k lt and Z l', through the action ot the beam orlever K, on suitably turning either operating-shaft G or G', to wind thechain It or 71,' upon its barrel, but the rods l l', in pulling ou theshoes E E through the shafts I 1', also turn said shafts, which havetheir end-hear-y ings, by eccentrics l P'-, within the shoes, so thatsaid eccentrics, being turned together with the shafts I I', bring up,in a gradual and powerful manner, the shoes E E against the wheels B B'.This action of the eccentric-s l P on the shoes, hf addition to thedirect swinging action or pull on them, through the radial connection ofthe rods l l', or other suitable means, with the shaftsl I' carriedthrough the ecccntrics by the shoes, is an' important feature in theoperation of the brakes. y l

In lhns applying the brake-power through the shoes E E', and which maybe done in going down-hill, or when it is not necessary to accumulate apower for starting the car again, the friction-wheels F F are notbrought up to act as brakes against or on the wheels B B', inasmuch asin turning the shafts G or G', to apply the shoes E E' to the wheels,the chains v o.' ,y are slacked, and thef shafts J' J' consequently notturned, which causes no pull to be made ou the chains u or u. But onturning the shafts G or G in a reverse direction, and to an extentbeyond that which is necessary to merely release the shoes E E fromfrictional contact wit-h the wheels B B', then the chains h or h' areslacked, and the chains g or g' tightened or pulled upon, so as to turnthe shafts J or J', an'd cause pull on the chains u or fu', which drawsthe frictionwheels F or Fup against the wheels B B', to make them actagainst the periphery O or C', to accumulate a starting-power, whilstthe shoes E or E act as brakes, but not turning the shafts I or I', tooperate the eccentrics P P', by reason of the barrels c or c and theirwheels F or F being loose on the swinging shafts I or l'. On thefriction-wheels F or F' being thus brought up against said'peripheries Cor C', in being /rotated by the wheels B or B', their barrels or pulleyscor cwork the chains u or aby the coiled lap of the samearound saidbarrels, so as to pull on the sliding bars L or L against the action ofthe springs M or `M, and cause their pawls o or o' to be drawn up overand into gear with the ratchet-wheels D or D'. This causes a power to bergenerated or accumulated for starting the car again, inasmuch as oureleasing hold of the shafts G or G', thedistcnded springs M or M arefree to iiy back and through the sliding bars L or L', and their pawls oor 0' pull on the ratchet-wheels D o1' D to turn the wheels B or B so asto make them act as drivers to the car.

The strength of the starting-power will be determined by the amount ofdistension given to the springs M or M and forward feed or throw of thepawls o or o', over the wheels D or D', which, of course, is regulatedby the amount of brake-force, as applied by the brakeman, or length oftime the wheels F or F' are held in contact Iwith the wheels B or B',and the speed of the latter at vthe time.

What is here claimed, and desired to be secured by Letters Patent, is

'.l. lhe arrangement'of the eccentrics P or l" in th body of theswinging shoes E or E', and fast on their shafts I or I', which carryoperating radial pins m or m', foroperation, substantially as specified.

2. The combination, with the brake-slices E E', of

the friction-wheels or brakes F F', the ratchet-wheels or racks D D',the starting-springs M M', together with their pawls, andthe chains,rods, and mechanism by which the shoes E E' or the friction-wheelsy F-F' may be operated at pleasure, as required, essentially WitnessesFRED. HAYNEs, M. J. SHANLY.

